Lesson 2 - How Electrolysis Works

This lesson is designed for AQA combined and triple chemistry.
This lesson builds on the previous lesson (Introduction to Electrolysis) where students looked at the basic set up for electrolysis and predicted which ion would be attracted to which electrode and why.

This lesson introduces the keywords anode, cathode, anion, cation, as well describing if ions gain or lose electrons at an electrode and are oxidised/reduced.

**Lesson Objectives: **

• Identify anions and cations
• Explain the movement of metal and non-metal ions to the anode and cathode
• Describe and explain what happens to ions at the anode and cathode
• Identify if an element is being oxidised or reduced at the electrode

This Lesson Contains:

• Complete lesson powerpoint with teaching guidance in notes section, complete answers for all tasks, mini-whiteboard AFL assessment quizzes, animations to describe the movement of ions and the gain or loss of electrons in electrolysis
• A printable cheat sheet for students explaining definitions and which ion is attracted to which electrode (editable and PDF)